Philip Zylstra MD
About this NPIWhat this record shows.
NPI 1659335602 is registered to Philip Zylstra MD, a Family Medicine practising at 3823 - 172nd St Ne, Cascade Skagit Health Alliance in Arlington, Washington. Family Medicine physicians provide comprehensive primary care for patients of all ages, including preventive care, chronic disease management, and acute illness treatment. Philip Zylstra MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Beyond the registryWhat this record adds.
This record carries 4 secondary identifiers beyond the base NPI: Medicaid and other payer cross-references used by billers and credentialers, which the standard CMS NPPES lookup does not surface. Within the directory it is one of 6,319 Family Medicine providers on file in Washington.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 0080347WA· Issued by LABOR & INDUSTRIES
- 263664WA· Issued by LABOR & INDUSTRIES
- R44189· Issued by REGENCE BLUE SHIELD
Medicaid
- 8117715WA
Source: NPPES public registry.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Philip Zylstra MD accepts. To confirm in-network status with your specific health plan, contact Philip Zylstra MD directly at (360) 618-5000.
Frequently asked
Yes. NPI 1659335602 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Family Medicine physicians provide comprehensive primary care for patients of all ages, including preventive care, chronic disease management, and acute illness treatment.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (360) 618-5000.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Philip Zylstra MD is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 6,319 Family Medicine providers are registered in Washington, and Philip Zylstra MD is one of them. The figure refreshes each month from the federal source.